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# 62a983eb 06-Apr-2022 Daniil Kovalev <[email protected]>

Revert "[CodeGen] Place SDNode debug ID declaration under appropriate #if"

This reverts commit 83a798d4b0e17ac41d5430f1290d3661343eee1e.

As discussed in D120714 with @thakis, the patch added unneed

Revert "[CodeGen] Place SDNode debug ID declaration under appropriate #if"

This reverts commit 83a798d4b0e17ac41d5430f1290d3661343eee1e.

As discussed in D120714 with @thakis, the patch added unneeded complexity
without noticeable benefits.

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# 83a798d4 06-Apr-2022 Daniil Kovalev <[email protected]>

[CodeGen] Place SDNode debug ID declaration under appropriate #if

Place PersistentId declaration under #if LLVM_ENABLE_ABI_BREAKING_CHECKS to
reduce memory usage when it is not needed.

Differential

[CodeGen] Place SDNode debug ID declaration under appropriate #if

Place PersistentId declaration under #if LLVM_ENABLE_ABI_BREAKING_CHECKS to
reduce memory usage when it is not needed.

Differential Revision: https://reviews.llvm.org/D120714

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Revision tags: llvmorg-14.0.0, llvmorg-14.0.0-rc4, llvmorg-14.0.0-rc3, llvmorg-14.0.0-rc2
# c74f54f2 01-Mar-2022 Sebastian Neubauer <[email protected]>

[UpdateTestChecks] Add requires asserts to tests

The tests use debug-only, which is only available in debug mode.
This should fix the failing tests.


# 8565b6f9 01-Mar-2022 Yatao Wang <[email protected]>

[UpdateLLCTestChecks] Add support for isel debug output in update_llc_test_checks.py

Add a check on run lines to pick up isel options in llc commands and allow
generating check lines of isel final o

[UpdateLLCTestChecks] Add support for isel debug output in update_llc_test_checks.py

Add a check on run lines to pick up isel options in llc commands and allow
generating check lines of isel final output other than assembly. If llc command
line contains -debug-only=isel, update_llc_test_checks.py will try to scrub isel
output, otherwise, the script will fall back on default behaviour, which is try to
scrub assembly output instead.

The motivation of this change is to allow usage of update_llc_test_checks.py to
autogenerate checks of instruction selection results. In this way, we can detect
errors at an earlier stage before the compilation goes all the way to assembly.
It is an example of having some transparency for the stages between IR and
assembly. These generated tests are almost like "unit tests" of isel stage.

This patch only implements the initial change to differentiate isel output from
assembly output for Lanai. Other targets will not be supported for isel check
generation at the moment. Although adding support for it will only require
implementing the function regex and scrubber for corresponding targets.

The Lanai implementation was chosen mainly for the simplicity of demonstrating
the difference between isel checks and asm checks.

This patch also do not include the implementation of function prefix, which is
required for the generated isel checks to pass. I will put up a follow up revision
for the function prefix change to complete isel support.

Reviewed By: Flakebi

Differential Revision: https://reviews.llvm.org/D119368

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